Thanks, Volker.

On two Apple Silicon M1 Macs with macOS 11.6.4 (Big Sur) and macOS 12.2.1
(Monterey), with Homebrew up to date, after

source .homebrew-build-env

./configure

make succeeds.


And make ptestlong gives only 2 errors:

----------------------------------------------------------------------
sage -t --long --warn-long 25.2
--random-seed=300585988638342567798698437588651751284
src/sage/graphs/graph.py  # 1 doctest failed
sage -t --long --warn-long 25.2
--random-seed=300585988638342567798698437588651751284
src/sage/matrix/matrix_gf2e_dense.pyx  # 1 doctest failed
----------------------------------------------------------------------


namely


**********************************************************************
File "src/sage/graphs/graph.py", line 8586, in
sage.graphs.graph.Graph.effective_resistance
Failed example:
    H.effective_resistance(1, 5, base_ring=RDF)
Expected:
    1.20000...
Got:
    1.1999999999999995
**********************************************************************

due to numerical noise, see https://trac.sagemath.org/ticket/33427 (already
closed)


and


**********************************************************************
File "src/sage/matrix/matrix_gf2e_dense.pyx", line 524, in
sage.matrix.matrix_gf2e_dense.Matrix_gf2e_dense._multiply_karatsuba
Failed example:
    A._multiply_karatsuba(B) == A._multiply_classical(B)
Expected:
    True
Got:
    False
**********************************************************************


due to the fact that M4RIE fails on this processor (see
https://bitbucket.org/malb/m4rie/issues/23/trying-to-compile-on-apple-m1).

On Monterey there were as usual 5 alerts "Pyhton quit unexpectedly", which
were ignored.

Guillermo

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